无尽 means 'endless' or 'boundless'. It is often used in literary or formal contexts to describe something that has no limit, such as love, space, time, or suffering. Note: the input pinyin is erroneous — the correct pronunciation is wú jìn (not mó). In usage, 无尽 functions like an adjective or stative verb, commonly appearing before nouns with 的 (如无尽的爱) or as a predicate (如快乐无尽).